Roger - (my brother's name) Sounds like a great setup you have there with your cabin etc. On the black locust, I burn the same. Lost several black locust in a wind storm about 10 years ago. Always thought oak and walnut were hard to beat, but after burning locust now over many seasons it's hard to beat. Burns hot and for a long time with minimal popping. Of course it was dried for several years after being split, so it is extremely dry and dare I say provides about the ideal combination of burn rate, heat and minimal smoke.. Its hardness is at the top of the scale for N. American trees, which contributes to its high btu output.
Best of luck if you do lose power. We will likely lose it too. We're only 1/2 mile outside the Vienna city limits, but our power goes out a lot when it gets windy. The saturated ground and forecast winds tomorrow are probably going to inflict some wide-spread outages.